BRPI1107333A2 - GRANULATED PLASTER FERTILIZER - Google Patents

Abstract

GRANULATED PLASTER BASED FERTILIZER refers to the patent of improvements introduced in the object of Brazilian Patent Pl. 0400603-8, which disclosed process for obtaining plaster compound of mineral or agricultural nature, in granular form and resulting final product, with formulations which aim to enrich a fertilizer with leaching and granulated agricultural plaster, with other nutrients used in agriculture, obtaining a granulated base fertilizer applied in plant and soil correction, bringing advantages of flexibility in the formulation of fertilizers based on the needs of the crop. element S of the crops to be fertilized, to make the formulas more complete in their nutritional power and to take advantage of by-products from the fertilizer industry and the chemical and process and reprocessing waste from the fertilizer mixers.

Description

"GRANULATED FERTILIZER

Gypsum base

The present patent refers to improvements made to the subject of Brazilian Patent PI 0400603-8, which has disclosed a process for obtaining gypsum compost, of mineral or agricultural nature, in granular form and resulting final product, by formulations which have aim to enrich a fertilizer with leaching and grainy agricultural plaster, with other nutrients used in agriculture, obtaining a granular base fertilizer applied in the fertilization of plants and soil correction, bringing flexibility advantages in the formulation of fertilizers based on the need of the element. They are the crops to be fertilized, to make the formulas more complete in their nutritional power, and to take advantage of by-products from the fertilizer industry and the chemical and process and reprocessing industries of fertilizer mixers.

As is well known by the technical means linked to fertilizer manufacturing, the current formulations for sulfur (S) element supply in plant fertilization and soil correction are ammonium sulfate and simple super phosphate (SSP), which in turn It is also a source of calcium (Ca) and is the result of the chemical reaction of apatite phosphate rock with sulfuric acid, having as product phosphoric acid in liquid form and byproduct calcium sulfate (agricultural plaster) in solid form with about 40% humidity. This by-product of calcium sulfate powder, after reducing moisture for the product to be applicable to agricultural machinery, is currently directed to agriculture in the correction of (toxic Ai) as a source of S and Ca or used in the mixing fertilizer industries for be supplemented with other macronutrients and micronutrients or for the cement industry for clinker retardant and for the chemical and construction industry. Additionally, there are current formulations for calcium and magnesium supply through calcium carbonate and calcium and magnesium carbonate powder, aiming at soil correction and fertilization.

The mixtures of calcium carbonate, magnesium carbonate and calcium sulfate have the disadvantages, limitations and drawbacks of their application in powder form due to human irritability and inaccuracy of dosing when applied by agricultural machinery.

Ammonium sulphate for nitrogen (N) and single super phosphate (SSP) for phosphorus supply are the only sources of nitrogen.

granulated solid form, causing, in most cases, the malnutrition of plants due to lack of sulfur (S), causing deficiency in plant formation and requiring supplementation.

Current formulations do not solve the following problems which the formulations of the present patent solved:

a) Impossibility of making formulations with macronutrients and micronutrients with high levels of

sulfur in the same granular formula;

(b) When fertilizer containing only sulfur in granular form is required, current products do not meet this need; and

c) Difficulty of application due to its

forms dust and is incompatible with fertilizer machines and other physically compatible granular fertilizers. "GYPSUM GRANULATED FERTILIZER", object of the present invention was developed to eliminate the disadvantages, limitations and drawbacks of current formulations, as they enrich fertilizers with sulfur derived from calcium sulphate in granular form, with other nutrients used in agriculture, obtaining a granular fertilizer used in plant fertilization and soil correction, bringing advantages in the formulation of high sulfur fertilizers and taking advantage of by-products from the fertilizer industry and the chemical and process and reprocessing leftovers of the 1 fertilizers. In addition, it allows the association of Calcium Carbonate and Calcium Magnesium Carbonate powder with Calcium Sulphate (agricultural plaster) powder which, when subjected to the granulation process, provides raw material, source of S, Ca and Mg in the form of granules. It can be used in fertilizer mixers to complement with other fertilizers, increasing the range of mixtures, lowering costs and improving nutritional levels for plants.

Additionally it solved the problems that current formulations did not solve by:

a) Possibility of making various formulations with macronutrients and micronutrients with high levels of

sulfur in granulated form;

(b) meets the need for the supply of high sulfur in granulated form, giving flexibility in mixing with other fertilizers; and

c) Perfect applicability due to its

pelletized form is compatible with fertilizer machines and other physically compatible granular fertilizers. The gypsum-based granular fertilizer formulations of the present invention are manufactured by perfecting the process disclosed in Brazilian patent PI 0400603-8, of the same holder of this patent, and have the following formulation variants in

05 weight percent:

1) 10 to 90% of previously dried, de-sieved, sieved calcium powder, sieved, with a moisture content of 5 to 45%, with a particle size of 0,01 to 0,5 mm and mixed with:

1.1) 10 to 90% Calcium Carbonate and / or

Freshly ground powdered magnesium magnesium carbonate with a particle size of 0,01 to 0,5mm; or

1.2) 10% and 90% of process waste or fertilizer sweeps from mixing units, industries or other sources, previously kneaded and sieved to 5 to 4% moisture

45% and with particle size from 0.01 to 0.5mm; or

1.3) 10% and 90% of serpentinite ore (magnesium silicate), source of Si and Mg and Ca, previously ground and sieved with a moisture content of 5 to 45% and a particle size of 0.01 to 0.5mm;

11 1

UU

1.4) 10% and 90% reactive natural phosphate

powder, previously sieved with moisture of 5 to 45% granulometry of 0,01 to 0,5mm; or

1.5) 10 to 90% of mineral source copper oxide previously ground and sieved with a particle size of 0,01 to

0.5mm; or

1.6) 10 to 90% of manganese monoxide of mineral source previously ground and sieved with a particle size of 0,01 to 0,5mm; or

1.7) 10 to 90% of simple super-static (SSP) powder, previously de-sieved, sieved, with 5 to 45% humidity and 0.01 to 0.5mm particle size manufactured by the fertilizer industry;

05 or

1.8) 10 to 90% triple superfostate (TSP) powder, previously de-sieved, sieved, with 5 to 45% moisture and 0.01 to 0.5 mm particle size and manufactured by the fertilizer industry; or

1.9) 10 to 90% of previously unmasked, sieved monoammonium phosphate (MAP) powder with a moisture content of 5 to 45

% and graded from 0.01 to 0.5mm and manufactured by the fertilizer industry; or

1.10) 10 to 90% diammonium phosphate (DAP) powder, previously de-sieved, sieved, with 5 to 45% humidity and

particle size from 0.01 to 0.5mm and manufactured by the fertilizer industry; and

granulated with organic agglutinanions of aqueous gum solution in various proportions of manioc starch or cornstarch and water, object of the above patent;

2) 5 to 50%% Calcium Sulfate powder previously dried, ground and sieved with a moisture content of 5 to 45% and with a particle size of 0.01 to 0.5mm mixed with:

2.1) 50 to 95% of ulexite ore and colemanite, source of boron (B), previously ground and sieved with a particle size of 0.01 to 0.5mm; or 2.2) 50 to 95% of copper sulphate of

Fertilizer industry, previously sieved with moisture from 5 to 45% and with particle size from 0.01 to 0.5mm; or 2.3) 50 to 95% manganese sulphate from a mineral source previously sieved with a moisture content of 5 to 45% and a particle size of 0,01 to 0,5mm; or

2.4) 50 to 95% of ammonium sulphate, source 05 N ammonia, powdered in chemical industries previously sieved with

humidity from 5 to 45% and with particle size from 0.01 to 0.5mm; or

2.5) 50 to 95% of zinc sulfate from the chemical industries and granules previously sieved with moisture of 5 to 45% and with a particle size of 0.01 to 0.5mm; or

2.6) 50 to 95% organic fertilizer

simple organic compost and / or fertilizer, manufactured by the fertilizer industry, previously dried, ground and sieved with a moisture content of 5 to 45% and with a particle size of 0,01 to 0,5mm; or

2.7) 50 to 95% of zinc ore and byproduct of the metallurgical industry previously dried, ground, sieved and with a particle size of 0.01 to 0.5mm; and

granulated with organic binders of aqueous gum solution in various proportions of cassava or cornstarch starch and water, object of the above patent; 3) 20 to 90% Calcium Sulphate Powder

previously dried, ground and sieved with a moisture content of 5 to 45% and with a particle size of 0.01 to 0.5mm mixed with 10 to 80% potassium chloride from a mineral source previously grounded, sieved with a moisture content of 5 to 45% and 0.01 to 0.5mm and granulated with organic binders of aqueous gum solution in various proportions of cassava starch or cornstarch and water, object of the previous patent;

4) 50 to 90% Calcium Sulfate powder previously dried, ground and sieved with a moisture content of 5 to 45% and with a particle size of 0.01 to 0.5 mm mixed with 10 to 50% Elemental Sulfur "S" finely. ground (ventilated) obtained by processing sedimentary volcanic rock with a content of 50 to 99% S granulated with 05 organic binders of aqueous gum solution in various proportions of cassava starch or cornstarch and water, object of the previous patent;

5) 70 to 80% Calcium Sulfate powder previously dried, ground and sieved with 5 to 45% humidity and 0.01 to 0.5 mm OGranulometry mixed with 20 to 30% ammonium nitrate powder in the chemical industries previously sieved with a moisture content of 5 to 45% and with a particle size of 0.01 to 0.5mm and granulated with organic binders of aqueous solution of gums in different proportions of cassava starch or cornstarch and water, object of the patent previous.

Alternatively, cassava and / or cornstarch starch binders may be used as a dry solid mixed with the plaster and the other dry components, forming the gum upon adding water to the granulator. Alternatively, the starch binders of

Cassava and / or cornstarch may be used in the pre-gelatinized form and mixed with the gypsum and other dry components, forming the final gum upon adding water to the granulator.

Fertilizers obtained by the granulation process have the following characteristics:

Humidity: 1 to 3%;

Particle size: 1 to 5mm; Hardness: min. 1.5 shore

Claims (3)

1. "GYPSUM GRANULATED PLASTER FERTILIZER" obtained by plaster granulation process, object of the patent PI0400603-8, characterized by the following formulation formulations in percent by weight: 1) 10 to 90% of previously dried Calcium Sulphate powder , sieved, sieved, with a moisture content of 5 to 45%, with a particle size of 0,01 to 0,5mm and mixed with: 1.1) 10 to 90% of calcium carbonate and / or freshly sieved ground magnesium carbonate with a particle size of 0.01 to 0.5mm, or 1.2) 10% and 90% of process waste or fertilizer sweeps from mixing units, industries or other sources, previously ground and sieved to a moisture content of 5 to 4515% and with a particle size of 0.01 to 0.5mm, or 1.3) 10% and 90% of the serpentinite ore magnesium silicate source, source of Si and Mg and Ca, previously ground and sieved with a humidity of 5 to 45% and with a particle size of 0, 01 to 0.5mm, or 1.4) 10% and 90% reactive natural phosphate powder, previously sieved with a 5 to 45% grain size from 0.01 to 0.5mm; or 1.5) 10 to 90% mineral oxide copper, previously ground and sieved with a particle size of 0,01 to 0,5 mm; or 1.6) 10 to 90% manganese monoxide of mineral source, previously ground and sieved with a particle size of 0,01 to 0,5mm; or .1.7) 10 to 90% of previously ungrounded, sieved powdered super-static (SSP) powder, with a moisture content of 5 to 45% and a particle size of 0.01 to 0.5mm manufactured by the fertilizer industry; or 1.8) 10 to 90% triple superfostate (TSP) powder, previously de-sieved, sieved, with a moisture content of 5 to 45% and a particle size of 0,01 to 0,5 mm and manufactured by the fertilizer industry; or 1.9) 10 to 90% of previously ungrounded, sieved monoammonium phosphate (MAP) powder, with a moisture content of 5 to 45 10% and a particle size of 0.01 to 0.5mm and manufactured by the fertilizer industry; or .10) 10 to 90% diammonium phosphate (DAP) powder, previously de-sieved, sieved, with a moisture content of 5 to 45% and a particle size of 0,01 to 0,5mm and manufactured by the fertilizer industry; 2. 5 to 50% Calcium sulphate powder previously dried, ground and sieved with a moisture content of 5 to 45% and with a particle size of 0,01 to 0,5mm mixed with: 2.1) 50 to 95% of ulexite ores colemanite, source of boron (B), previously ground and hung with a particle size of 0.01 to 0.5mm; or 2.2) 50 to 95% copper sulphate from the fertilizer industry, previously sieved with a moisture content of 5 to 45% and with a particle size of 0,01 to 0,5mm; or 2.3) 50 to 95% manganese sulphate from a mineral source previously sieved with a moisture content of 5 to 45% and a particle size of 0,01 to 0,5mm; or 2.4) 50 to 95% of ammonium sulphate, source N ammonia, powdered in chemical industries previously sieved with a moisture content of 5 to 45% and with a particle size of 0.01 to 0.5 mm; or2.5) 50 to 95% of zinc sulphate from the chemical industries and previously sieved granulation with a moisture content of 5 to 45% and a particle size of 0.01 to 0.5mm; or 2.6) 50 to 95% compound organic fertilizer and / or simple organic fertilizer manufactured by the previously dried, ground and sifted fertilizer industry with a moisture content of 5 to 45% and a particle size of 0.01 to 0.5mm; or 2.7) 50 to 95% of zinc ore and by-product of the previously dried, milled, sieved metallurgical industry with a particle size of 0,01 to 0,5mm; 3) 20 to 90% pre-dried, milled and sieved Calcium Sulphate powder, 5 to 45% moisture and 0.01 to 0.5mm particle size mixed with 10 to 80% previously ground mineral source potassium chloride , sieved with 5 to 45% humidity and 0.01 to 0.5mm particle size; 4) 50 to 90% of previously dried, ground and sieved Calcium Sulfate powder with 5 to 45% humidity and 0 to 1.0 to 0.5mm mixed with 10 to 50% finely ground (ventilated) Elemental Sulfur "S" obtained by processing sedimentary volcanic rock with contents of 50 to 99% S; 5) 70 to 80% Calcium Sulphate powder previously dried, ground and sieved with a moisture content of 5 to 45% and with a particle size of 0.01 to 0.5mm mixed with 20 to 30% ammonium nitrate powder in the chemical industries previously sieved with a humidity of 5 to 45% and with particle size from 0.01 to 0.5mm. "GYPSUM GRANULATED FERTILIZER" according to Claim 1, characterized in that, alternatively, cassava and / or cornstarch starch binders may be used in the form of a dry solid mixed with the plaster and the same. other dry components forming the gum upon adding water to the granulator. Plaster-based granulated fertilizer according to Claim 1, characterized in that, alternatively, the cassava and / or cornstarch starch binders may be used in pregelatinised form and mixed with the plaster and the other dry components. forming the final gum upon adding water to the granulator.